Apparatus for promoting combustion in furnaces.



. 0. READa APPARATUS FOR PRGMOTKNG COMBSTIOII IN URNLBS.

l APPLIATlH FILED TERK-1911.

Armenian l E. RE.,- Y yAPPARAIIS POB PRUYTING GOM USTION IN FURNAGES. M PLIUATIOH FILED mm2, w11. 1,106,583,

atented mg. lli, wm

A WrlNESSES INVENTR EMEHY 5. mimi;

ATTQRNEV ricain safari@ EMERY C. READ, F FRANKLIN, PENNSYLVANIA.

.MPPARATUS FOR PROMOTING COMBUSTION IN FURNACES.

To all whom it may Concern.' u

Be it known that I, Emana' C. READ, citizen of the United States, residing at Franklin, in the county of Venango and State ot Pennsylvania, have invented certain new and useful Improvements in Apparatus t'or Promoting Combustion in Furnaces, ot which the following is a specification.

My improved apparatus for promoting combustion in furnaces isherein set forth with sutlieient clearness to enable those Skilled in the art to which it apjrertains to employ and construct the same, but l do not Wish to be understood as limiting the apparatus to the precise construction here shown. as the drawings are illustrative merely, and many modifications of saidl apparatus could be employed without departing from the scope of my invention.

In the accompanying drawings, l. have shown my improved apparatus as applied to the fire-box of a locomotive, b'ut it will be readily understood that said apparatus may be readily employed in other kinds ol l'urnaces and easily adapted to such employment. `While I have here shown ya construction which contemplates the nee ol a hollowgrate bar and the passage ol" aii longitudinally through the same Iinto a vertical llue, Said bar could be ot the usual construction` and air could be taken directly into the lower end of the vertical lue, and still be within thescope of my invention.

It is a well-known tact that the draft oi" a locomotive is largely an induced draft caused bv theaction o't` the exhaust steam passing from a nozzle into and through the smoke stack. and, especially when/'the locomotive is laboring under heavy loads, the intensity ot the draft is such as to lift the fuel from the grate bars and carry particles of it ont through the slack, and in this way a loss of fuel and imperfect combustion are both caused,-'impert`ect con'ibustion being),` due to the fact that the air rushes through the fuel and combustion chamber with such rapidity that it does not become suiiiciently lfated to cause perfect con'ibustimi of the fuel. Furthermore, because ot this intensity of draft, particles oi burning Juel are ejected from .the stack and in many instances cause lires which destroy or damage inuch property.

It will be readily understood that it thev intensity of dra ttcould be reduced. it would eliminate the dllliculties mentioned, but it will also be readily understood that the rate Specification of Letters Eatent.

'Application lec February 2, 1911.

Patented flug. il Tl, Mitte.

Serial No. 606,100,

of combustion or the hent-ejeuerating capacity ol the iurnace must at least be inaintained in order lo supply the steam demands of the engine. .Yith these conditions in riew, l have evolved an apparatus whereby a portion ot' the air which, by reason of the draft, entersv the fire-box. is caused to pass around the b erl oi' `fuel. and in such passage, causes said liv-passed air to become heated to a high degree ol"l ieiujnrature, then causes the saine to cuter the combustion chamber above said lucl and to there nungfjle with the burning grasos, thereby causing.;` a perfect conilulstion oiA said gases and consequently a consumption o'l`V all sinolte. ltelerringv to the drawings. the luy-pass by means of which l direct said portion ot air as aforesaid and reduce in v invention to practice, may be as follow.

Figure l is a Vertical` longitudiiuil section of the fire-box ot a locomotive on line C C ot Fig. 2, showing iny invention applied thereto and whichis also shown in section upon said line. Fin'. 2 is a vertical. transverse section o'le said lire-box on line A A ot Fig. 1, the left-hand portion ol' niy apparatus being shown in section'on line l l5 oi Fig. l. Figs. l and `rlshow a steam injector applied to my apparatus. Figi 5 is a niodilied i'orln of lny device.

Said apparatus consists oi a plurality of units, each ot' which is composed o'lthree .sections7 viz: a` hollow grate ba r l, a vertical liuc section 2, and a hollow. horizontal crown-bar il. Each of said units may be ot any suitable width, which will be determined more or less by the size olI the 'l'urnace and convenience ol' installation. Said grate-bars, in torni, resemble that of a rectangular tube having adjacent to the top thereof the lateral lugs l, between which air enters into the fuel bed. lhe rear end o said bar is open itor the entrance oij' air shown by the arrows in Fig. l. The lue section 2 is ot tubular construction, the front and rear walls of which are preferably cori-ugated as shown, for the purpose ot' presenting more surface to the action ot' lhe heat. .The lateral faces ol said sections are plain and are designed to forni a close joint with each other so that said sections torni a wall or bailleplate which dellects the gases of combustion to the upper part of the combustion chamber and causes them to pass between the crownbars 3. Said crown-bars are of tubular formation, preferably of oval cross-section and have a horizontal, longitudinal partition 5 which extends nearly the entire length of the and a horizontally-disposed hollow crownbar. The lower chamber 6 of said crown-bar bar extending across the upper portion efc5 is in comnninication with the chamber of the said fire box and having lateral orifices flue section 'lhe upper chamber 7 of said therein for the egress of al1-,said gratebar,

crown bar is provided with a number of flue section and crown-bar being constructed lateral orifices 8 through which the heated and arranged for the passage of air through air passes into the combustion chamber the same and to have its ingress 1n sald 7U where it mingles wiLl the gases of combusgrate-bar and lts egress from said lateral tion and. lenig in a highly heated state, it orifices in said crown bar; sald crown-bar lo causes nearly or quite perfect combustion of section being arranged wlth spaces between said gases and a consequent complete conthe saine through which the gases of coinsuniption of the smoke. The unoccupied bustion are caused to pass and -to in ingle 75 portion oi the lire-box in front of the grates with the an' as 1t issues from said orices, may be closed by a tilting damper 9, whereby for the purpose set forth.

draft may be prevented from entering at 3. Au apparatus for promoting combustllis point, and einders and ashes may be tien in furnaces, consisting of the. comblasily emptied therefrom by tilting said nation of a plurality of sectional units, each 80 damper. of said units comprising a. hollow grate-bar,

At till-les it may be diralal@ t0 accelerate a vertically-disposed flue-section positioned or force the passage of air through my appain proximity to the rear of the fire-box of ratus, which l term the draft by-pass, and clic furnace, and a horizontally-disposed iu order to accomplish this result, I provide crown-bar extending across the upper por- 85 for directing jets of live steam into Said tion ci Said fi1-c-bcX and having orifices by-pass. ln Figs. 23 and 4, l have shown a tlicycin foitlie egress of air, said units be- 25 steam supply pipe l0, which leads from the ing Constructed and arranged for the passteam dome and is provided with a throttlesage of air through the same, Whioh has S not shown-which may be actuated from the ingress in Said grate-bnr, and its egress 90 ill'ClDlllS Stiltlflll 4lll till) (lill). Plpe from] Orfce in said 'clONVn-bal, the is equipped with a plurality of small nozzles units of which crown-bnr are arranged with 3o ll, 0110 j'01 LCll Dit 0f by-PRSS, and by spaces between the same, through which the opening said throttle, live steam may be ingases of combustion are caused to pass and jecled into the by-pass and this will greatly there mingle with the iiias il; issues from 95 accelerate the passage of air through the Said Orifice, and means injecting fluid under same. pressure, at the point of ingress of said air,

I Claim the f0ll0W1llgI- for the purpose Specified,

1. An apparatus for promoting combus- 4, An apparatus for promoting coinbus- ZOII lll lllll'llLCCS, (OIlSlStlDg 0l.'l t pllll'illlty 0f tion in flu-nages Consisting 0f a, plurality 100 sectional by-l'mss units, each of said units :0f hoi-immfiillydispcscd licllcw crown bars being composed of the following sections,- extending longitudinally across Jche furnace,

.l0 a hollow grate section arranged for the inand positioned in the upper 'part thereof, take of airy at one end into its chamber,a there heingan intervening space upon either vertically-disposed baille flue section having Sid@ cf cach 0f said bars, between the same 105 its chamber arranged in communication l:and the bar in juxtaposition thereto, for the with said grate chamber, and a hollow passage 0f the gases of combustion, also crown-bar arranged horizontally across the lateral orifices in each of said bars opening upper portion of the combustion chamber of into the spaces adjacent thereto, and vertia furnace with its chamber in con'nnunica cally-disl'icscd flue-sections hauing interior 110 tion with the chamber of said flue, said passages communicating with the interior crown bars being arranged with intermediof said crown-bars at one end thereof and ate spaces, there being apertures in said adapted to conduct air to the interior of crown bar leading from its chamber into said bars from beneath the furnace, said lue said spaces for the purpose oit'l ycausing sections being positioned in proximity to `115 air passing through said several sections to the rear end of the combustion chamber ofv mingle with4 the gases of combustion, and said furnace, for the purpose of forming said flue sections being arranged to direct, a baille plate to deflect the gases of combusthe gases of combustion upward through tion into the upper portion of said chamber. said spaces, for the purpose set forth. In testimony whereof I atiix my signa- 2. Anf apparatus for promotilng co1nbusture in presence of two witnesses. tion in urnaces consisting of t 1e combinai s i,

60 tion of a plurality of secttional units, each EMERY (J LLD' of said units comprising a hollow grate bar, lVitnesses:

a vertically-disposed Hue section positioned CLYDEM. READ, at the roar lof the lire-box of such furnace WM. A. MALLoRr. 

